ai stones and pumps

i bought two types of air stones and pumps to see witch works best
here is what i found. the walmart air stone that is totally encased in plasticis too restrictive and the petsmart bubble disc works great or the 4-12" air stones that are just stones with a fitting glued to one end also are good
the aqua culture 20-60gal airpump wasnt strong enough the tetra whisper 30-60gal was plenty of power now there is a price gap one is 10 and one is 20 dollars but i just wanted to know what other people used in their setups to see what the best thing is to use

Punctuation !?!

sorry it is pretty jumbled.

I've heard that ceramic stones are the best... I should go get one myself tonight.

Ihavent tried the ceramics yet. Ill test those too next. I really like the disc though it produces a large circle of fine bubbles perfect for a round container
like a bucket.

You can get circular ceramic airstones... I understand that they're easier to keep clean.